TECH NEWS
New HollowGraph Malware Abuses Microsoft 365 Calendar for C&C Communication
A recently discovered piece of malware abuses the Microsoft 365 calendar for command-and-control (C&C) communication, Group-IB reports. Dubbed HollowGraph, the malware is believed to be part of a larger toolkit and is likely linked to Cavern Manticore, an Iran-nexus threat actor that Check Point detailed earlier this month.